<template>

  <a-layout>
    <a-layout-content
        :style="{ background: '#fff', padding: '24px', margin: 0, minHeight: '280px' }"
    >

      <a-row :gutter="24">
        <a-col :span="10">
          <p>
            <a-button type="primary" @click="add()" size="lage">
              新增
            </a-button>
          </p>

          <a-table
              v-if="level1.length > 0"
              :columns="columns"
              :row-key="record => record.id"
              :data-source="level1"
              :pagination="false"
              :loading="loading"
              :default-expand-all-rows="true"
              :defaultSelectedKeys = "defaultSelectedKeys"
          >
            <template #name="{ text: record }">
              {{ record.sort }} {{ text }}
            </template>
            <template v-slot:action="{ text, record }">
              <a-space size="small">

                <a-button type="primary"  @click="edit(record)" size="small">
                  编辑
                </a-button>

                <a-popconfirm
                    title="删除后不可恢复，确认删除？"
                    ok-text="是" cancel-text="否"
                    @confirm="handleDelete(record.id)"
                >
                  <a-button type="danger" size="small">
                    删除
                  </a-button>
                </a-popconfirm>

              </a-space>
            </template>
          </a-table>
        </a-col>
        <a-col :span="14">
          <a-form :model="doc" :label-col="{ span: 6 }" :wrapper-col="{ span: 18 }">

                <a-form-item>
                  <a-button type="primary" @click="handleSave()" size="lage">
                    保存
                  </a-button>
                </a-form-item>


            <a-form-item>
              <a-input v-model:value="doc.name" placeholder="名称"/>
            </a-form-item>

            <a-form-item>
              <a-tree-select
                  v-model:value="doc.parent"
                  style="width: 100%"
                  :dropdown-style="{maxHeight:'400px',overflow:'auto'}"
                  :tree-data="treeSelectData"
                  placeholder="请选择父文档"
                  tree-default-expand-all
                  :field-names="{children:'children',label:'name',value:'id'}"
              >
              </a-tree-select>
            </a-form-item>
            <a-form-item>
              <a-input v-model:value="doc.sort" placeholder="顺序"/>
            </a-form-item>
            <a-form-item>
              <a-button type="primary" @click="handlePreviewContent()">
                <EyeOutlined />内容预览
              </a-button>
            </a-form-item>
            <a-form-item>
              <div id="content"></div>
            </a-form-item>
          </a-form>
        </a-col>
      </a-row>

      <a-drawer width="900" placement="right" :closable="false" :visible="drawerVisible" @close="onDrawerClose">
        <div class="wangeditor" :innerHTML="previewHtml"></div>
      </a-drawer>

    </a-layout-content>
  </a-layout>

<!--  <a-modal
      title="分类表单"
      v-model:visible="modalVisible"
      :confirm-loading="modalLoading"
      @ok="handleSave"
  >

  </a-modal>-->

</template>
<script lang="ts">
import { defineComponent ,onMounted,ref, createVNode } from 'vue';
import axios from 'axios'
import { Tool } from "@/utils/tool";
import {message, Modal} from 'ant-design-vue';
import { useRoute } from "vue-router";
import {ExclamationCircleOutlined} from "@ant-design/icons-vue";
import E from "wangeditor";



export default defineComponent({
  name: 'AdminDoc',
  // components: {
  //
  // },
  setup: function () {
    const docs = ref();
    const route = useRoute();
    const pagination = ref({
      current: 1,
      pageSize: 5,
      total: 0
    });
    const loading = ref(false);
    const treeSelectData = ref();
    treeSelectData.value = [];

    const columns = [
      {
        title: '名称',
        dataIndex: 'name'
      },
      {
        title: '父分类',
        dataIndex: 'parent'
      },
      {
        title: '顺序',
        dataIndex: 'sort'
      },
      {
        title: 'Action',
        key: 'action',
        slots: {customRender: 'action'}
      }
    ];

    /*
    * 数据查询
    * */
    const level1 = ref();
    level1.value = [];

    const handleQuery = () => {
      loading.value = true;
      axios.get("/doc/allList",{
        params: {
          ebookId: route.query.ebookId
        }
      }).then((resp) => {
        loading.value = false;
        level1.value = [];
        const data = resp.data;

        if (data.success) {
          console.log(data.content)
          console.log("原始数组:", data.content);
          level1.value = [];
          level1.value = Tool.array2Tree(data.content, 0);
          console.log("树形结构:", level1);

          //父文档下拉框初始化，相当于点击新增
          treeSelectData.value = Tool.copy(level1.value) || [];
          //为选择树添加一个“无”
          treeSelectData.value.unshift({id: 0, name: '无'});
        } else {
          message.error(data.message);
        }
      });
    };


    // -------- 表单 ---------

    const doc = ref();
    doc.value = {
      ebookId: route.query.ebookId
    };


    const modalVisible = ref(false);
    const modalLoading = ref(false);

    const editor = new E('#content');
    editor.config.uploadImgShowBase64 = true
    editor.config.zIndex = 0;

    //保存
    const handleSave = () => {
      modalLoading.value = true;
      doc.value.content = editor.txt.html();

      axios.post("/doc/save", doc.value).then((resp) => {
        modalLoading.value = false;
        const data = resp.data;
        if (data.success) {
          message.success("保存成功！！");

          //重新加载列表
          handleQuery();
        }
      });
    };

    //删除
    const handleDelete = (id: number) => {
      // 清空数组，否则多次删除时，数组会一直增加
      ids.length = 0;
      deleteNames.length = 0;
      getDeleteIds(level1.value, id);
      Modal.confirm({
        title: '重要提醒',
        icon: createVNode(ExclamationCircleOutlined),
        content: "将删除：【" + deleteNames.join("，") + "】删除后不可恢复，确认删除？",
        onOk() {
          // console.log(ids)
          axios.get('/doc/remove?ids=' + ids.join(",")).then((response) => {
            const data = response.data; // data = commonResp
            if (data.success) {
              // 重新加载列表
              handleQuery();
            } else {
              message.error(data.message);
            }
          });
        },
      });
    }

    //富文本预览
    const drawerVisible = ref(false);
    const previewHtml = ref();
    const handlePreviewContent = () => {
      console.log("进预览页面");
      const html = editor.txt.html();
      console.log(html);
      //文本内容
      previewHtml.value = html;
      drawerVisible.value = true;
    };
    const onDrawerClose = () => {
      drawerVisible.value = false;
    }

    //新增
    const add = () => {
      editor.txt.html(" ");
      modalVisible.value = true;
      doc.value = {
        ebookId: route.query.ebookId
      };

      treeSelectData.value = Tool.copy(level1.value) || [];

      treeSelectData.value.unshift({id: 0, name: '无'});

    }


    //编辑
    const edit = (record: any) => {
      //清空富文本框
      editor.txt.html(" ");
      doc.value = record;
      modalVisible.value = true;
      doc.value = Tool.copy(record);
      handleQueryContent();

      //不能选择当前节点以及其所有子孙节点，作为父节点，会使树断开
      treeSelectData.value = Tool.copy(level1.value);
      setDisable(treeSelectData.value, record.id);

      //为选择树添加一个“无”
      treeSelectData.value.unshift({id: 0, name: '无'});

    }

    /**
     * 内容查询
     **/
    const handleQueryContent = () => {
      axios.get("/doc/findContentById/" + doc.value.id).then((response) => {
        const data = response.data;
        if (data.success) {
          editor.txt.html(data.content)
        } else {
          message.error(data.message);
        }
      });
    };

    /**
     * 将某节点及其子孙节点全部置为disabled
     */
    const setDisable = (treeSelectData: any, id: any) => {
      // console.log(treeSelectData, id);
      // 遍历数组，即遍历某一层节点
      for (let i = 0; i < treeSelectData.length; i++) {
        const node = treeSelectData[i];
        if (node.id === id) {
          // 如果当前节点就是目标节点
          console.log("disabled", node);
          // 将目标节点设置为disabled
          node.disabled = true;

          // 遍历所有子节点，将所有子节点全部都加上disabled
          const children = node.children;
          if (Tool.isNotEmpty(children)) {
            for (let j = 0; j < children.length; j++) {
              setDisable(children, children[j].id)
            }
          }
        } else {
          // 如果当前节点不是目标节点，则到其子节点再找找看。
          const children = node.children;
          if (Tool.isNotEmpty(children)) {
            setDisable(children, id);
          }
        }
      }
    };


    /**
     * 查找整根树枝
     */
    const ids: Array<string> = [];
    const deleteNames: Array<string> = [];
    const getDeleteIds = (treeSelectData: any, id: any) => {
      // console.log(treeSelectData, id);
      // 遍历数组，即遍历某一层节点
      for (let i = 0; i < treeSelectData.length; i++) {
        const node = treeSelectData[i];
        if (node.id === id) {
          // 如果当前节点就是目标节点
          console.log("delete", node);
          // 将目标ID放入结果集ids
          // node.disabled = true;
          ids.push(id);
          deleteNames.push(node.name);

          // 遍历所有子节点
          const children = node.children;
          if (Tool.isNotEmpty(children)) {
            for (let j = 0; j < children.length; j++) {
              getDeleteIds(children, children[j].id)
            }
          }
        } else {
          // 如果当前节点不是目标节点，则到其子节点再找找看。
          const children = node.children;
          if (Tool.isNotEmpty(children)) {
            getDeleteIds(children, id);
          }
        }
      }
    };


    onMounted(() => {
      editor.create();
      handleQuery();
    })
    return {
      docs,
      pagination,
      columns,
      loading,


      edit,
      doc,
      modalVisible,
      modalLoading,
      handleSave,
      add,
      handleDelete,

      level1,
      treeSelectData,

      editor,
      handleQueryContent,

      handlePreviewContent,
      previewHtml,
      drawerVisible,
      onDrawerClose

    }
  }
});
</script>

